Revert "AAPT: Version <adaptive-icon> to v26"

Bug: 36462965
Bug: 35908647

This reverts commit c7614e5d1e8f9139cccf6ab9b78dda16b98f7656.

Change-Id: I25279e7c53823dad0703c7e2ea8ff91bdbc1a0f2
diff --git a/tools/aapt/Resource.cpp b/tools/aapt/Resource.cpp
index 2bf5206..3330b1a 100644
--- a/tools/aapt/Resource.cpp
+++ b/tools/aapt/Resource.cpp
@@ -1403,8 +1403,7 @@
             String8 src = it.getFile()->getPrintableSource();
             err = compileXmlFile(bundle, assets, String16(it.getBaseName()),
                     it.getFile(), &table, xmlFlags);
-            // Only verify IDs if there was no error and the file is non-empty.
-            if (err == NO_ERROR && it.getFile()->hasData()) {
+            if (err == NO_ERROR) {
                 ResXMLTree block;
                 block.setTo(it.getFile()->getData(), it.getFile()->getSize(), true);
                 checkForIds(src, block);
@@ -1551,7 +1550,7 @@
             String8 src = it.getFile()->getPrintableSource();
             err = compileXmlFile(bundle, assets, String16(it.getBaseName()),
                     it.getFile(), &table, xmlFlags);
-            if (err == NO_ERROR && it.getFile()->hasData()) {
+            if (err == NO_ERROR) {
                 ResXMLTree block;
                 block.setTo(it.getFile()->getData(), it.getFile()->getSize(), true);
                 checkForIds(src, block);
@@ -1599,7 +1598,7 @@
         err = compileXmlFile(bundle, assets, workItem.resourceName, workItem.xmlRoot,
                              workItem.file, &table, xmlCompilationFlags);
 
-        if (err == NO_ERROR && workItem.file->hasData()) {
+        if (err == NO_ERROR) {
             assets->addResource(workItem.resPath.getPathLeaf(),
                                 workItem.resPath,
                                 workItem.file,